dentaku.gemspec in dentaku-0.2.2 vs dentaku.gemspec in dentaku-0.2.3

@@ -13,9 +13,10 @@
     Dentaku is a parser and evaluator for mathematical formulas
   DESC
 
   s.rubyforge_project = "dentaku"
 
+  s.add_development_dependency('rake')
   s.add_development_dependency('rspec')
 
   s.files         = `git ls-files`.split("\n")
   s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
   s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }